Cope] 442 [May 19, 



the calcaneuin only. In the tarsus then there are four types of articuhi- 



f% 



L 



Fig. 6. Fig. 7. 



Fig. G.— Lett posterioi* foot of Phenacodus primoevus, one-third natural size 

 (original). 



Fig. 7.— Riglit posterior foot of Hyrax capensis (from Cuvier), On. calca- 

 neuin; a. astragalus; n. navicular; cu. cuboid; ecc. ectocuneiform ; »nc. meso- 

 cuneiforni ; enc. entocuneiform 



'■■• •' Sli!. '] 



.. :) 



Fig. 8. 

 Fio. 8.— Posterior foot of Coryphodon (original). 



